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Doppler effect and light dual control automatic door socket circuit (RD627)
Source: InternetPublisher:念念Brown Updated: 2012/04/22
The circuit is shown in the figure. It consists of a Doppler effect sensor head, a light-controlled switch, a monostable trigger, a thyristor control circuit, a music sounding circuit and an AC step-down rectifier circuit. When vehicles or pedestrians approach the gate, the security gate will automatically open and a melodious music will be played at the same time. Latest Control Circuits Circuits
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